Streptococcus pneumonia is the leading cause of bacterial pneumonia. It can enter your lungs through inhalation or through your bloodstream. There is a vaccination for this type. Haemophilus influenzae is the second most common cause of bacterial pneumonia.
The droppings are similar in color to the wood residue that the insects spill as they eat. Subterranean termite droppings are soft and used in constructing nests, whereas drywood termite droppings are hard and look like piles of sawdust, according to Extension.org.
Dry wood termites produce small, sand like droppings that they kick out of a hole in the wood the are infesting. There are some pictures of ground termite tubes and dry wood damage on this site. http://www.kilaueapest.com/termites